Replicant - Hitsuji no Dolly wo Aisuru to Iu Koto -

I want to be with you. Even if it's a fake (replica) — a world that has succeeded in replicating a perfect human. Chris, who works at the Clone Institute, had a special feeling towards his colleague Seth. But he has a clean and beautiful fiance. The more he feels he wants, the more he suffers. As Seth's engagement approaches, he comes up with a plan.